DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerShift lock system
System Diagram
System Description
The selector lever cannot be shifted from "P" position to any other position
unless the ignition switch is in the
ON position and the brake pedal is depressed.
Component Parts Location
BCM (view with combination meter
removed)
Stop la ...
Interior room lamp
Removal and Installation
FRONT ROOM/MAP LAMP ASSEMBLY
Removal
Release the metal clips and drop front edge of front room/map
lamp assembly (1) away from headlining. Slide front room/map lamp
assembly forward in vehicle to clear pawls at rear.
: Front :
Pawl : Metal clip
Disco ...
P1800 vias control solenoid valve 1
Description
The VIAS control solenoid valve 1 cuts the intake manifold vacuum signal for
power valve 1 control. It
responds to ON/OFF signals from the ECM. When the solenoid is OFF, the vacuum
signal from the intake
manifold is cut. When the ECM sends an ON signal the coil pulls the plunger ...